This little seal keeps things tidy around the shaft that turns your speedometer and other gauges. Specifically, it prevents oil – usually silicone oil – from leaking out of the instrument cluster housing. It’s a simple part, but it’s responsible for maintaining the lubrication that allows all those moving parts inside to work smoothly. Think of your instrument cluster as a little mechanical world behind the glass. The shaft seal is on the part that lets the signal from the transmission get to the speedometer needle – it's how your speed is actually displayed. Without a good seal, that oil leaks, causing problems with accurate readings. It’s a small piece within a bigger system, but a vital one. If this seal fails, you’ll notice if your speedometer starts jumping around or giving inaccurate readings. Often, it will start with intermittent issues, then get progressively worse. Eventually, the speedometer could just stop working altogether. Leaking oil can also damage other components inside the cluster, which is something you definitely want to avoid. Luckily, it’s not a super complicated repair and this part is relatively inexpensive. You can find them easily enough; a place like Fixparts Online carries a good range of these. It’s much cheaper to replace this seal than to replace the entire instrument cluster. Reliable performance guaranteed: Shaft Seal (MPN 23121490192) has a 12-month warranty!

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• Get parts made specifically for your BMW, so they fit and work perfectly. • BMW parts are known for their high quality and durability, meaning they last longer. • Using genuine BMW parts helps maintain your vehicle’s value. • You can trust BMW parts to keep your car running smoothly and safely. BMW delivers excellence, FixParts Online delivers to your door.